SBA Set-Aside Programs Explained: 8(a), HUBZone, WOSB and SDVOSB Certification Guide

Federal small business set-asides are one of the most powerful tools a small company has for winning government contracts. Each year the federal government sets a goal of awarding at least 23% of prime contract dollars to small businesses, with additional goals for socio-economic categories. If your company qualifies for an SBA certification such as 8(a), HUBZone, WOSB or SDVOSB, you can compete in a smaller pool of bidders or even receive sole-source awards.

This guide breaks down each SBA small business program, who qualifies, and how to get certified.

What Is a Small Business Set-Aside?

A set-aside is a contract (or part of a contract) that a contracting officer reserves for small businesses only. Under the "rule of two," if a contracting officer reasonably expects offers from two or more responsible small businesses at fair market prices, the work is generally set aside. To compete, you must be small under the NAICS code size standard listed in the solicitation and registered in SAM.gov.

The SBA 8(a) Business Development Program

The 8(a) program is a nine-year business development program for small businesses that are at least 51% owned and controlled by socially and economically disadvantaged individuals.

• Key benefit: sole-source awards up to $5.5 million for services and $8.5 million for manufacturing (thresholds updated October 1, 2025).
• Other benefits: 8(a) competitive set-asides, a dedicated SBA business opportunity specialist, and access to joint ventures and mentor-protégé support.
• Apply at: certify.sba.gov.

HUBZone Certification

The Historically Underutilized Business Zone (HUBZone) program helps firms in economically distressed areas. To qualify:

• Your principal office must be located in a designated HUBZone (check the SBA HUBZone map).
• At least 35% of your employees must live in a HUBZone.
• The company must be at least 51% owned and controlled by U.S. citizens, a Community Development Corporation, an agricultural cooperative, an Alaska Native Corporation, a Native Hawaiian Organization or an Indian tribe.

HUBZone firms get set-asides, sole-source opportunities and a 10% price evaluation preference in full and open competitions.

Women-Owned Small Business (WOSB) and EDWOSB

The WOSB Federal Contract Program is for small businesses at least 51% owned and controlled by women who are U.S. citizens. Economically Disadvantaged WOSBs (EDWOSB) meet additional personal net worth and income limits. Set-asides are available in NAICS codes where women-owned firms are underrepresented. Certification is through SBA (or an approved third-party certifier).

Service-Disabled Veteran-Owned Small Business (SDVOSB)

The SDVOSB program is for firms at least 51% owned and controlled by one or more service-disabled veterans. Since January 2023, SBA's VetCert program handles SDVOSB and VOSB certification for both government-wide and VA contracting. Self-certification is no longer enough to win SDVOSB set-asides.

Can You Hold More Than One Certification?

Yes. Many firms stack certifications, for example a woman-owned company in a HUBZone that is also in the 8(a) program. Each certification opens a different pool of set-aside contracts, so stacking widens your pipeline.

Tips for Maximizing Your Set-Aside Strategy

• Update your SAM.gov profile and Dynamic Small Business Search (DSBS) profile with every certification and NAICS code.
• Use your certifications in your capability statement and in responses to sources-sought notices. Those responses help contracting officers justify a set-aside.
• Track agency small business goals and forecasts to find buyers that need your category.
• Keep ownership, control and residency records current. Certifications can be challenged by competitors through protests.

Frequently Asked Questions

How long does SBA certification take?

Processing times vary by program and application completeness. A well-documented application moves fastest, so gather tax returns, ownership documents and résumés before you apply.

Do I need a certification to win federal contracts?

No. Any small business can compete for total small business set-asides by self-representing its size in SAM.gov. Certifications unlock additional, more targeted opportunities.

Is SBA certification free?

Yes. SBA does not charge to apply for 8(a), HUBZone, WOSB or VetCert certification.

Which set-aside program has worked best for your business? Share your experience below to help other small contractors on GovConUnited.